The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10693423 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 23, 2020

Filed:

Sep. 30, 2018
Applicant:

Shenzhen Goodix Technology Co., Ltd., Shenzhen, CN;

Inventor:

Shuo Fan, Shenzhen, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/30 (2006.01); H03F 3/04 (2006.01); H03F 1/02 (2006.01); H03F 3/00 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03F 1/30 (2013.01); H03F 1/0205 (2013.01); H03F 1/301 (2013.01); H03F 3/04 (2013.01); H03F 3/45085 (2013.01); H03F 3/45295 (2013.01); H03F 2200/129 (2013.01); H03F 2200/447 (2013.01); H03F 2203/45376 (2013.01); H03F 2203/45396 (2013.01);
Abstract

A dynamic amplification circuit includes a first drive circuit () generates a first driving voltage according to a first control signal and a first driving current; a second drive circuit () generates a first driving signal according to the first and a second driving voltage; a third drive circuit () generates a second control signal according to the first control signal and the first driving signal; and a dynamic amplifier DA () includes a first branch () including a first capacitor and a second branch () including a second capacitor which are connected by a first resistor () and a second resistor (), an operation state of the DA () is controlled through the first and second control signals, a duration of the DA () in an amplification phase is proportional to a product of a resistance value of the first resistor and a capacitance value of the first capacitor.


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